H class or Class H may refer to:
Railway locomotives Barry Railway Class H, 0-8-2T tank locomotives NBR H class, 4-4-2 steam locomotives NZR H class, steam locomotives used by the New Zealand Railways Department Metropolitan Railway H Class, 4-4-4T steam locomotives Palestine Railways H class, steam locomotives SECR H class, 0-4-4T locomotives designed by Harry Wainwright South Australian Railways H class, 4-4-0 steam locomotives Taff Vale Railway H class, 3 0-6-0T steam tank locomotives Tasmanian Government Railways H class (1889), 0-4-0WT steam locomotives Tasmanian Government Railways H class (1951), 4-8-2 steam locomotives Victorian Railways H class, 4-8-4 steam locomotives used in Australia Victorian Railways H class (1877), 4-4-0 steam locomotives Victorian Railways H class (diesel), diesel locomotives WAGR H class, steam locomotives WAGR H class (diesel), diesel electric locomotives
Trams H type Adelaide tram H-class Melbourne tram H-class Sydney tram
Ship types H-class destroyer, British destroyer class which served during World War II H-class battleship proposals, multiple planned, but cancelled, German battleship classes during World War II H-class lifeboat, RNLI hovercraft lifeboats H-class submarine (disambiguation), multiple classes
Other uses H-class blimp, observation airships built for the U.S. Navy Class H, a class of electronic amplifiers
See also H (disambiguation)